Native traits,
89-102, 297
Negative adaptation,
302-303, 310, 312, 413
Nerve,
26, 30, 32;
autonomic, 124-125;
cell, 31-36, 51, 414;
center, 26, 29-30, 49-66, 76, 82-84, 96, 107, 125, 293;
fiber, 32
Nervous system,
27-29, 32, 41, 124
Nesting,
105, 110-112